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Author Message
 Post subject: PrePersist / Annotation Issues
PostPosted: Fri May 01, 2009 6:39 pm 

Joined: Fri May 01, 2009 6:21 pm
Posts: 1

I'm having trouble getting my PrePersist or PreUpdate annotation to fire.

My config

my Hibernate.cfg.xml (no orm.xml specified/used):
<property name="hibernate.bytecode.use_reflection_optimizer">false</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.password">codefu</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/invest</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.current_session_context_class">thread</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<mapping class="com.invesys.invest.dao.User" />
<mapping class="com.invesys.invest.dao.EventImpacts" />

User POJO class with annotations(generated by hibernate tools, then hand editted):
package com.invesys.invest.dao;

// Generated May 1, 2009 12:30:46 AM by Hibernate Tools 3.2.4.CR1

import java.util.Date;

import java.util.HashSet;

import java.util.Set;

import javax.persistence.CascadeType;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.FetchType;

import javax.persistence.GeneratedValue;

import javax.persistence.PrePersist;

import javax.persistence.PreUpdate;

import static javax.persistence.GenerationType.IDENTITY;

import javax.persistence.Id;

import javax.persistence.OneToMany;

import javax.persistence.Table;

import javax.persistence.Temporal;

import javax.persistence.TemporalType;


* User generated by hbm2java






public class User implements java.io.Serializable {

private Integer id;

private String name;

private String email;

private String passwordHash;

private Date createdAt;

private Date updatedAt;

private Set<EventImpact> eventImpacts = new HashSet<EventImpact>(0);

public User() {

System.out.println("Created user.");


public User(String name, String email, String passwordHash, Date createdAt, Date updatedAt, Set<EventImpact> eventImpacts, Set<InvestGoal> investGoals, Set<UserPortfolio> userPortfolios) {

this.name = name;

this.email = email;

this.passwordHash = passwordHash;

this.createdAt = createdAt;

this.updatedAt = updatedAt;

this.eventImpacts = eventImpacts;


@Id @GeneratedValue(strategy=IDENTITY)

@Column(name="id", unique=true, nullable=false)

public Integer getId() {

return this.id;


public void setId(Integer id) {

this.id = id;


@Column(name="name", length=45)

public String getName() {

return this.name;


public void setName(String name) {

this.name = name;



public String getEmail() {

return this.email;


public void setEmail(String email) {

this.email = email;


@Column(name="password_hash", length=128)

public String getPasswordHash() {

return this.passwordHash;


public void setPasswordHash(String passwordHash) {

this.passwordHash = passwordHash;



public Date getCreatedAt() {

return this.createdAt;



public void onCreate() {

createdAt = new Date();

System.out.println("PrePersist - set createdAt " + createdAt);


public void setCreatedAt(Date createdAt) {

this.createdAt = createdAt;




public Date getUpdatedAt() {

return this.updatedAt;


public void setUpdatedAt(Date updatedAt) {

this.updatedAt = updatedAt;



public void onUpdate() {

updatedAt = new Date();

System.out.println("PreUpdate - set updatedAt " + updatedAt);


@OneToMany(cascade=CascadeType.ALL, fetch=FetchType.LAZY, mappedBy="user")

public Set<EventImpact> getEventImpacts() {

return this.eventImpacts;


public void setEventImpacts(Set<EventImpact> eventImpacts) {

this.eventImpacts = eventImpacts;



When I create a new User record I don't see my PrePersist get called.
And when I update an existing User record, I don't see my PreUpdate get called.
I don't use the orm.xml (it doesn't appear to be needed?)

For creating a new user I do:
user = new User() ;

But the user.createdAt field is null, and it get's stored in the database as "NULL".

Any ideas?

Thanks much in advance.


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